How To Apply :- The filled in application form along with the enclosures as applicable shall be sent by ordinary post in an envelope superscribing “Application for the post of Operator-C (El ) / Elect r ician-C / Crane Operator -C /Welder -C, Fi t ter-C”(as applicable) to Post Box No. 2752, GPO, Kolkata-1 so as to reach on or before 02.09.2012.